title: H-PDLC based waveform controllable optical choppers for FDMF microscopy.
abstract: An electrically waveform controllable optical chopper based on holographic polymer dispersed liquid crystal grating (H-PDLC) is presented in this paper. The theoretical analyses and experimental results show that the proposed optical chopper has following merits: (1) controllable waveform, (2) no mechanical motion induced vibrational noise, and  (3) multiple-channel integration capability. The application of this unique electrically controllable optical chopper to frequency division multiplexed fluorescent microscopy is also addressed in this paper, which has the potential to increase the channel capacity, the stability and the reliability. This will be beneficial to the parallel detection, especially for dynamic studies of living biological samples.
authors.affiliation: College of Optics and Electron Information Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China. jihongzheng2002@yahoo.com.cn
authors.forename: Jihong
authors.initials: J
authors.lastname: Zheng
authors.forename: Guoqiang
authors.initials: G
authors.lastname: Sun
authors.forename: Yanmeng
authors.initials: Y
authors.lastname: Jiang
authors.forename: Tingting
authors.initials: T
authors.lastname: Wang
authors.forename: Aiqing
authors.initials: A
authors.lastname: Huang
authors.forename: Yunbo
authors.initials: Y
authors.lastname: Zhang
authors.forename: Pingyu
authors.initials: P
authors.lastname: Tang
authors.forename: Songlin
authors.initials: S
authors.lastname: Zhuang
authors.forename: Yanjun
authors.initials: Y
authors.lastname: Liu
authors.forename: Stuart
authors.initials: S
authors.lastname: Yin
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D008029:Lighting / Q000295:instrumentation*; D050866:Liquid Crystals; D055617:Micro-Electrical-Mechanical Systems / Q000295:instrumentation*; D008856:Microscopy, Fluorescence / Q000295:instrumentation*; D012031:Refractometry / Q000295:instrumentation*